Metida Srikullaphat และ Passapol Ngamukot. (2015) DEVELOPMENT OF PORTABLE SPECTROPHOTOMETRIC DEVICE WITH FLOW-BASED ANALYSIS SYSTEM FOR DETECTION OF HEAVY METAL IONS. Chulalongkorn University:ม.ป.ท.Metida Srikullaphat และ Passapol Ngamukot. 2015. DEVELOPMENT OF PORTABLE SPECTROPHOTOMETRIC DEVICE WITH FLOW-BASED ANALYSIS SYSTEM FOR DETECTION OF HEAVY METAL IONS. ม.ป.ท.:Chulalongkorn University;Metida Srikullaphat และ Passapol Ngamukot. DEVELOPMENT OF PORTABLE SPECTROPHOTOMETRIC DEVICE WITH FLOW-BASED ANALYSIS SYSTEM FOR DETECTION OF HEAVY METAL IONS. ม.ป.ท.:Chulalongkorn University, 2015. Print.